Water drain accelerating device

ABSTRACT

A water drain accelerating device has a base with a discharge port connected to a flush way assembled inside a water tank. An overflow hole is connected to the discharge port. An overflow pipe is plugged to the base. The bottom of the overflow pipe is connected to the overflow hole. A negative pressure pipe is connected to the overflow pipe. Negative pressure generates inside the overflow pipe when the base is draining. Water inside the water tank flows out of the discharge port when water drains. The water level inside the cavity of the negative pressure pipe falls down with the water level inside the water tank. Negative pressure generates inside the overflow pipe, so air inside the overflow pipe can&#39;t enter into the discharge port through the overflow hole. An air pipe extends from the overflow hole to the flush way.

FIELD OF THE INVENTION

The present invention relates to auxiliary equipment for a water valveof toilet, especially to a water drain accelerating device.

BACKGROUND OF THE INVENTION

The discharge port of the base of the existing water valve is connectedto the overflow hole, when normally used, as the overflow hole isplugged to the overflow pipe of the base to connect to the air of thewater tank, water in the water tank flows out of the discharge port ofthe base and partial negative pressure generates in the overflow hole,the air of the water tank is sucked to the discharge port through theoverflow hole by the overflow pipe, making part of water drain space ofthe discharge port occupied by air, so that no water is surrounded inthe discharge port and the inner wall but some water in the dischargeport, water flow rate of discharge port per unit time decreases, anddraining period is long, besides, as air enters to the discharge port toinfluent flow, water flow rate decrease through the discharge port ofthe base, making wash force to the toilet decreased, which influentsclean effect of the toilet.

SUMMARY OF THE INVENTION

To solve above problems, the present invention is provided with a waterdrain accelerating device, in which water level of the water tank fallsdown to make negative pressure generated by the air of the overflow pipewhen the water valve is open to drain, the air in the overflow pipe cannot enter to the discharge port through the overflow hole to influencethe volume and water flow rate of the discharge port when the base isdraining.

For above purpose, the present invention is provided with a water drainaccelerating device, which includes a base assembled inside the watertank, the base is disposed with a discharge port connected to the flushway and an overflow hole connected to the discharge port, an overflowpipe is plugged to the base, the bottom of the overflow pipe isconnected to the overflow hole, wherein further includes a negativepressure pipe connected to the overflow pipe, with the negative pressurepipe, negative pressure generates inside the overflow pipe when the baseis draining.

The bottom of the cavity of the negative pressure pipe is an opening,the top of the cavity is formed to be a seal part.

The cavity of the negative pressure pipe is disposed with severallimiting ribs with interval, the overflow pipe is plugged into thecavity to be positioned to the limiting ribs, the overflow pipe isconnected to the cavity with space.

The limiting ribs of negative pressure pipe is disposed under the sealpart of the cavity, the top of the overflow pipe is clamped to thelimiting ribs with space.

The seal part at the top of the negative pressure pipe is disposed witha water refill joint connected to the cavity, the water refill joint isdisposed with a water refill check valve.

The water refill check valve includes a valve rod sliding up and downinside the water refill joint, the bottom of the valve rod is fixed witha seal fitting, a spring is sleeved in the valve rod to withstand thevalve rod upwards to make the seal fitting to seal the water refilljoint.

The present invention further includes an air pipe extended from theoverflow hole to the wash way.

With above technical proposal, when water tank is draining, water insidethe water tank flows out of the discharge port of the base to make thewater level falls, with water level inside the cavity of the negativepressure pipe falls down with the water level inside the water tank,negative pressure generates inside the overflow pipe, so air inside theoverflow pipe can't enter into the discharge port 11 through theoverflow hole, the sectional area of the water flow is the largest inthe discharge port and the toilet is flushed and washed by largestrength in a short time, which improves the clean effect. And an airpipe is disposed extended from the overflow hole to the flush way,making negative pressure generated inside the flush way and acceleratedthe water flow rate as well.

Another technical proposal of the present invention is provided with awater drain accelerating device, which includes a base and an overflowpipe, the base is assembled inside the water tank and disposed with adischarge port connected to the wash way of the toilet, the overflowpipe is assembled inside the water tank to connect to the wash way,wherein further includes a negative pressure pipe, which is connected tothe overflow pipe, negative pressure generates inside the overflow pipewhen the base is draining.

The bottom of the cavity of the negative pressure pipe is an opening,the top of the cavity is formed to be a seal part.

The present invention further includes an air pipe extended from theoverflow pipe to the wash way.

The water drain accelerating device of the technical proposal isprovided that the overflow pipe is disposed on the bottom wall of thewater tank directly and it is connected to the flush way of the toilet,no overflow hole of overflow pipe is disposed in the base of the watervalve, it solves the problem of the influence of the air inside theoverflow pipe to the water flow rate of the discharge port of the base,and it makes negative pressure generated inside the flush way toincrease the water flow rate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates the sectional view of the first embodiment of thepresent invention.

FIG. 2 illustrates the structure of the negative pressure pipe of thefirst embodiment of the present invention.

FIG. 3 illustrates the sectional view of the overflow pipe of the firstembodiment of the present invention when the overflow pipe is situatedin overflow state.

FIG. 4 illustrates the sectional view of the overflow pipe of the firstembodiment of the present invention when the overflow pipe is situatedin negative pressure state.

FIG. 5 illustrates the sectional view of the second embodiment.

FIG. 6 illustrates the partial sectional view of the second embodimentwhen negative pressure in the overflow pipe and the check valve isclosed.

FIG. 7 illustrates the partial sectional view of the second embodimentwhen the check valve is open to replenish water to the overflow pipe.

FIG. 8 illustrates the assembly of the water drain accelerating deviceof the present invention to the flush way of the toilet.

FIG. 9 illustrates the assembly of the third embodiment when the waterdrain accelerating device is connected to the flush way of the toiletthrough an air pipe.

FIG. 10 illustrates the assembly of the fourth embodiment when theoverflow pipe is disposed in the water tank and connected to the flushway of the toilet directly.

Reference signs: base 10; discharge port 11; overflow hole 12; overflowpipe 20; negative pressure pipe 30; cavity 31; opening 310; seal part311; limiting rib 32; joint of water refill pipe 33; water refill checkvalve 34; valve rod 341; seal fitting 342; spring 343; water refill pipe35; flush way 40; wash way 41; jet way 42; air pipe 50.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present invention will be further described with the drawings andembodiments. The first embodiment (no water refill joint is disposed onthe top of the negative pressure pipe)

As figured in the FIG. 1, FIG. 3 and FIG. 4, a water drain acceleratingdevice includes a base 10, which is disposed with a discharge port 11and overflow hole 12 connected to each other, as figured in the FIG. 8,the discharge port 11 is connected to the flush way 40 of the toilet,the flush way 40 includes a jet way 42 and a wash way 41; an overflowpipe 20 is vertically plugged to the base 10, the bottom of the overflowpipe 20 is connected to the overflow hole 12, a negative pressure pipe30 is further disposed to connect to the overflow pipe 20 and negativepressure generates inside the overflow pipe 20 when the base 10 isdraining; as figured in FIG. 1 and FIG. 2, the bottom of the cavity 31of the negative pressure pipe 30 is an opening 310, the top of thecavity 31 is formed to be a seal part 311, the seal part 311 of thecavity 31 is disposed with several limiting ribs 32 with interval at thebottom, the overflow pipe 20 is plugged into the cavity 31, the top ofoverflow pipe 20 is clamped to the limiting ribs 32 with space, theoverflow pipe 20 is connected to the cavity 31 with space, that is theassembly of the present invention.

Following is the work principle and detailed action of the presentinvention.

As figured in FIG. 1 and FIG. 3, put the base 10 of the presentinvention to the water tank of the toilet (not figured out), a valvewith a switch is fixed to the base 10 (not figured out), when the waterflows into the water tank and makes water level raised to reach to theopening 310 of the bottom of the negative pressure pipe 30, the waterlevel seals the opening 310, with the raise of the water level insidethe water tank, the water level of the cavity 31 of the negativepressure pipe 30 raises at the same time, air inside the cavity 31enters to the overflow pipe 20 through the spaces between the limitingribs 32 then gets out of the overflow hole 12 of the base 10. When thevalve is failure and water level is higher than the top of the overflowpipe 20 in the cavity 31, water flows out of the top of the overflowpipe 20 through the cavity 31 then flows out of the overflow hole 12 toform overflow.

As figured in FIG. 4, when the discharge port 11 of the base 10 is opento water drain, water inside the water tank flows out of the dischargeport 11 of the base 10 to make the water level falls, with water levelinside the cavity 31 of the negative pressure pipe 30 falls down withthe water level inside the water tank, negative pressure generatesinside the overflow pipe 20, so air inside the overflow pipe 20 can'tenter into the discharge port 11 through the overflow hole 12, thedischarge port 11 is full of water, that is to say, sectional area ofthe water flow is largest in the discharge port 11 and water flow rateis largest in the discharge port 11 per unit time, as no air enters intothe discharge port 11 from the overflow hole 12, water flow rate ishighest in the discharge port 11, so the toilet is cleaned by high washforce in a short time.

The second embodiment (water refill joint is disposed at the top of thenegative pressure pipe)

As figured in FIG. 5 and FIG. 6, the difference from the firstembodiment is as below: the sealing part 311 at the top of the negativepressure pipe 30 is disposed with a water refill joint 33 to connect tothe cavity 31, the water refill joint 33 is disposed with a check valve34, the check valve 34 is disposed with a valve rod 341 sliding up anddown inside the water refill joint 33, the bottom of the valve rod 341is fixed with a seal fitting 342, a spring 343 is disposed at the valverod 341 to push the valve rod 341 up to make the seal fitting 342pushing and sealing the water refill joint 33.

As figured in FIG. 5 and FIG. 6, a water refill pipe 35 is connected tothe water refill joint 33, the check valve 34 is closed and sealed theseal part 311 of the negative pressure pipe 30 to seal the top of thecavity 31, when the water valve is open and the discharge port 11 of thebase 10 is draining, water in the water tank flows out through thedischarge port 11 of the base 10 to make the water level of the watertank falling down, water level in the cavity of the negative pressurepipe 30 falls down with the water level of the water tank, negativepressure generates in the overflow pipe 20, which is connected to thecavity, with the negative pressure of the overflow pipe 30, air in theoverflow pipe 20 can't enter into the discharge port 11 through theoverflow hole 12, the discharge port 11 is full of water, sectional areaof the water flow is largest in the discharge port 11 and water flowrate is largest in the discharge port 11 per unit time, as no air entersinto the discharge port 11 from the overflow hole 12, water flow rate isthe highest in the discharge port 11, so the toilet is cleaned by highwash force in short time.

As figured in FIG. 7, when water is replenished to the overflow pipe 20through the water refill joint 33 by the water refill pipe 35, the waterwith pressure flushes to the seal fitting 342 of the check valve 34,making the seal fitting 342 moving downward and then separating from thebottom of the water refill joint 33, the seal fitting 342 drives thevalve rod 341 to move downwards to compress the spring 343, the refillwater of the water refill joint 33 is guiding to the overflow pipe 20from the negative pressure pipe 30, then the water flows to the bendingpipe of the toilet through the base 10 from the overflow hole 12 to formwater seal to prevent odour of the drain pipe escaping from the toilet;when water of the water refill pipe 35 is cut off, with the work of thespring 343, the spring 343 drives the valve rod 341 to reposition, andthe valve rod 341 drives the seal fitting 342 to reposition to seal thewater refill joint 33 and the seal part 311 at the top of the negativepressure pipe 30. Other structure, work principle and action of thisembodiment are similar to the first embodiment.

The third embodiment (the water drain accelerating device is connectedto the flush way of the toilet by an air pipe)

As figured in FIG. 9, this embodiment further includes an air pipe 50extended from the overflow hole 12 to the flush way 40, the water drainaccelerating device is connected to the flush way 40 by the air pipe 50,making negative pressure generated inside the flush way 40 to acceleratethe water flow rate. Other structure, work principle and action of thisembodiment are similar to the first embodiment.

The fourth embodiment (the overflow pipe is disposed in the water tankto connect to the flush way of the toilet directly)

As figured in FIG. 10, the water drain accelerating device of thisembodiment includes a base 10, which is assembled in the water tank anddisposed with a discharge port connected to the flush way 40 of thetoilet, the difference from the first embodiment is as below: theoverflow pipe 20 is assembled in the bottom wall of the water tank andconnected to the flush way 40 directly, or the overflow pipe 20 isconnected to the flush way 40 by an air pipe 50 extended from theoverflow pipe 20, the negative pressure pipe 30 is connected to theoverflow pipe 20 and negative pressure generates in the overflow pipe 20when the base is draining, negative pressure generates in the flush way40 to accelerate draining; in another hand, as no overflow hole ofoverflow pipe 20 is disposed in the base, air inside the overflow pipe20 has no influence to the volume of the discharge port. Otherstructure, work principle and action of this embodiment are similar tothe first embodiment.

Although the present invention has been described with reference to thepreferred embodiments thereof for carrying out the patent for invention,it is apparent to those skilled in the art that a variety ofmodifications and changes may be made without departing from the scopeof the patent for invention which is intended to be defined by theappended claims.

What is claimed is:
 1. A water drain accelerating device, includes abase assembled inside the water tank, the base is disposed with adischarge port connected to the flush way and an overflow hole connectedto the discharge port, an overflow pipe is plugged to the base, thebottom of the overflow pipe is connected to the overflow hole, whereinfurther includes a negative pressure pipe connected to the overflowpipe, with the negative pressure pipe, negative pressure generatesinside the overflow pipe when the base is draining.
 2. A water drainaccelerating device according to claim 1, wherein the bottom of thecavity of the negative pressure pipe is an opening, the top of thecavity is formed to be a seal part.
 3. A water drain accelerating deviceaccording to claim 1, wherein the cavity of the negative pressure pipeis disposed with several limiting ribs with interval, the overflow pipeis plugged into the cavity to be positioned to the limiting ribs, theoverflow pipe is connected to the cavity with space.
 4. A water drainaccelerating device according to claim 3, wherein the limiting ribs ofnegative pressure pipe is disposed under the seal part of the cavity,the top of the overflow pipe is clamped to the limiting ribs with space.5. A water drain accelerating device according to claim 2, wherein theseal part at the top of the negative pressure pipe is disposed with awater refill joint connected to the cavity, the water refill joint isdisposed with a water refill check valve.
 6. A water drain acceleratingdevice according to claim 5, wherein the water refill check valveincludes a valve rod sliding up and down inside the water refill joint,the bottom of the valve rod is fixed with a seal fitting, a spring issleeved in the valve rod to withstand the valve rod upwards to make theseal fitting to seal the water refill joint.
 7. A water drainaccelerating device according to any one of claim 1, wherein furtherincludes an air pipe extended from the overflow hole to the wash way. 8.A water drain accelerating device includes a base and an overflow pipe,the base is assembled inside the water tank and disposed with adischarge port connected to the wash way of the toilet, the overflowpipe is assembled inside the water tank to connect to the wash way,wherein further includes a negative pressure pipe, which is connected tothe overflow pipe, negative pressure generates inside the overflow pipewhen the base is draining.
 9. A water drain accelerating deviceaccording to claim 8, wherein the bottom of the cavity of the negativepressure pipe is an opening, the top of the cavity is formed to be aseal part.
 10. A water drain accelerating device according to claim 8,wherein further includes an air pipe extended from the overflow pipe tothe wash way
 11. A water drain accelerating device according to claim 2,wherein further includes an air pipe extended from the overflow hole tothe wash way.
 12. A water drain accelerating device according to claim3, wherein further includes an air pipe extended from the overflow holeto the wash way.
 13. A water drain accelerating device according toclaim 4, wherein further includes an air pipe extended from the overflowhole to the wash way.
 14. A water drain accelerating device according toclaim 5, wherein further includes an air pipe extended from the overflowhole to the wash way.
 15. A water drain accelerating device according toclaim 6, wherein further includes an air pipe extended from the overflowhole to the wash way.
 16. A water drain accelerating device according toclaim 9, wherein further includes an air pipe extended from the overflowpipe to the wash way.